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Propagation of measurement uncertainties in mismatch factor correction for photovoltaic device calibration.

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conference contribution
posted on 10.06.2015, 10:39 by Blagovest Mihaylov, Martin BlissMartin Bliss, Tom BettsTom Betts, Ralph Gottschalg
The mismatch factor uncertainty is one of the major uncertainty contributors in calibration measurements, especially for thin film devices, and the most complex to calculate analytically due to underlying correlations in uncertainty. Typically, empirical estimates or Monte Carlo simulations based on wavelength dependent uncertainty analysis are used and sampling is conducted by random walks. A different sampling approach is proposed based on fitting a sum of Gaussian distributions to measurement data and generating spectral response curves within the uncertainty envelope by altering the fitting parameters. The generated curves are smooth and approximate real measurement data. Presently, the sampling method is limited to SRs.


B. Mihaylov would like to acknowledge his funding through the RCUK Supergen project ‘Supersolar’ [grant no: EP/J017361/1].



  • Mechanical, Electrical and Manufacturing Engineering

Research Unit

  • Centre for Renewable Energy Systems Technology (CREST)

Published in

6th World Conference on Photovoltaic Energy Conversion


MIHAYLOV, B.V. ... et al, 2014. Propagation of measurement uncertainties in mismatch factor correction for photovoltaic device calibration. Presented at : The 6th World Conference on Photovoltaic Energy Conversion, 23rd-27th November 2014, Kyoto, Japan.


Institute of Electrical and Electronics Engineers, Japan Society of Applied Physics and IEEE Electron Devices Society / © IEEE


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